Chinese girls have their faces painted with the red ribbon anti-Aids symbol during an HIV/AIDS awareness rally at the Beijing university November 28, 2004. China has approved human testing of a locally developed potential AIDS vaccine, the official Xinhua news agency said, just days before World AIDS Day. Officials have pledged to speed up the approval process for anti-AIDS drugs in China, where the United Nations has warned that the number of people with AIDS could rise to 10 million by 2010 unless serious steps are taken to fight the epidemic. REUTERS/Reinhard Krause.

词汇：

ribbon n.缎带，丝带

awareness n.知道，意识

rally n.召集；群众集会

vaccine n.疫苗

pledge vt.保证，使发誓

epidemic n.时疫，疫疾流行